Spot heating locates the heater above the areas you
are located and the air is not heated. Infrared heats
objects not air, so you are kept warmer.
Most types of infrared heaters can be used outdoors,
providing it is entirely shielded from rain and wind driven rain,
but typically quartz lamp heaters are used because they reach higher temperatures
and they are less
susceptible to heat loss from wind because of less mass to hold heat which can be lost to a rise in
temperature of the air crossing it. The Fostoria RPH heaters and the Fostoria Mul-T-Mount
are both UL listed for completely exposed/unprotected outdoor applications and
are frequently used for snow and ice melting.

WATTS PER SQUARE FOOT REQUIRED

TEMPERATURE RISE REQ'D

WATTS PER SQ. FT.

HEATER MOUNTING HEIGHT

10°

20

8-10'

15°

30

8-10'

20°

40

8-10'

25°

50

8-10'

30°

60

8-10'

35°

70

8-10'

40°

80

8-10'

An estimator must also have the following specific
information available before calculating the heating load and fixture layout.